A gentle introduction to Einstein's General Theory of Relativity discussing gravitational waves and the curvature of space and how, since 1915, experiments have been undertaken to test its accuracy. Recent observations by Jodrell Bank astronomers have shown that Einstein's theory must be at least 99.95% right! All our lectures are available for free download from the Gresham College website, in video, audio or text formats: http://www.gresham.ac.uk Gresham College professors and guest speakers have been giving free public lectures in central London since 1597. This tradition continues today and you can attend any of our lectures, or watch or listen to them on our website. Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: http://www.facebook.com/pages/Gresham-College/14011689941

Gresham College exists for the sole purpose of disseminating knowledge to the public through free lectures. This four century old tradition continues today with three or more lectures a week being made available for free download from our website: